CN114712930A - Gas-liquid double-spraying-rotary filtering type low-concentration biogas slurry continuous solid-liquid separation device - Google Patents
Gas-liquid double-spraying-rotary filtering type low-concentration biogas slurry continuous solid-liquid separation device Download PDFInfo
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- CN114712930A CN114712930A CN202210521944.8A CN202210521944A CN114712930A CN 114712930 A CN114712930 A CN 114712930A CN 202210521944 A CN202210521944 A CN 202210521944A CN 114712930 A CN114712930 A CN 114712930A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D33/00—Filters with filtering elements which move during the filtering operation
- B01D33/70—Filters with filtering elements which move during the filtering operation having feed or discharge devices
- B01D33/72—Filters with filtering elements which move during the filtering operation having feed or discharge devices for feeding
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D33/00—Filters with filtering elements which move during the filtering operation
- B01D33/15—Filters with filtering elements which move during the filtering operation with rotary plane filtering surfaces
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D33/00—Filters with filtering elements which move during the filtering operation
- B01D33/44—Regenerating the filter material in the filter
- B01D33/46—Regenerating the filter material in the filter by scrapers, brushes nozzles or the like acting on the cake-side of the filtering element
- B01D33/461—Regenerating the filter material in the filter by scrapers, brushes nozzles or the like acting on the cake-side of the filtering element brushes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D33/00—Filters with filtering elements which move during the filtering operation
- B01D33/44—Regenerating the filter material in the filter
- B01D33/46—Regenerating the filter material in the filter by scrapers, brushes nozzles or the like acting on the cake-side of the filtering element
- B01D33/466—Regenerating the filter material in the filter by scrapers, brushes nozzles or the like acting on the cake-side of the filtering element scrapers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D33/00—Filters with filtering elements which move during the filtering operation
- B01D33/44—Regenerating the filter material in the filter
- B01D33/48—Regenerating the filter material in the filter by flushing, e.g. counter-current air-bumps
- B01D33/50—Regenerating the filter material in the filter by flushing, e.g. counter-current air-bumps with backwash arms, shoes or nozzles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D36/00—Filter circuits or combinations of filters with other separating devices
- B01D36/04—Combinations of filters with settling tanks
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/30—Fuel from waste, e.g. synthetic alcohol or diesel
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- Chemical Kinetics & Catalysis (AREA)
- Treatment Of Sludge (AREA)
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Abstract
The invention discloses a gas-liquid double-spraying-rotary filtering type low-concentration biogas slurry continuous solid-liquid separation device, which aims to solve the problems of low separation efficiency, poor separation quality and the like caused by blockage in the traditional solid-liquid separation process. The feeding system and the solid-liquid separation system are fixed on the rack, the feeding system conveys materials to the solid-liquid separation system, the materials are filtered by the filter screen, a filtrate part is collected in the solid-liquid collection system, a sludge part intercepted on the filter screen is peeled off by the scraper and then enters the solid-liquid collection system through the solid pipeline, meanwhile, an air blowing system part of the solid-liquid collection system blows off a solid part remained on the filter screen and enters the solid pipeline, the solid-liquid collection system is also connected with the rack, and solid and liquid are subjected to secondary separation through the overflow plate. Continuous high-quality solid-liquid separation is realized, and the separation requirements of different filtering degrees can be met by replacing filter screens with different meshes.
Description
Technical Field
The invention belongs to the technical field of low-concentration biogas slurry separation devices, and particularly relates to a gas-liquid double-spraying-rotary filtering type low-concentration biogas slurry continuous solid-liquid separation device.
Background
The solid-liquid separation device is widely applied to the wastewater treatment process in the aspects of food, chemical industry, livestock breeding, printing and dyeing and the like, and after solid-liquid separation, solid and liquid can be conveniently and respectively treated again, so that the utilization efficiency is further improved, and meanwhile, the storage and the transportation are convenient. For example, solid-liquid separation of livestock and poultry breeding wastewater can recover high value-added products such as biomass energy, biological organic fertilizer and the like, and effectively improve the surrounding ecological environment of a farm.
However, the natural settling separation effect is very poor, the traditional solid-liquid separation methods such as extrusion and filtration have high energy consumption and poor economical efficiency, and meanwhile, colloidal substances existing in the mixture are very easy to cause filtration blockage, so that the continuous, efficient and low-cost separation requirements of low-concentration biogas slurry cannot be met. Therefore, it is important to find a continuous and efficient device with high separation quality and low separation cost in the production and application process.
Disclosure of Invention
The invention aims to solve the technical problems of easy blockage, incapability of meeting the continuous separation of low-concentration biogas slurry, poor separation quality and low separation efficiency in the prior art, and provides a gas-liquid double-spraying-rotary filtering type low-concentration biogas slurry continuous solid-liquid separation device.
A gas-liquid double-spraying-rotary filtering type low-concentration biogas slurry continuous solid-liquid separation device comprises a feeding system, a solid-liquid separation system, a rack and a solid-liquid collection system;
the feeding system and the solid-liquid separation system are fixed on the rack, the solid-liquid collection system is connected with the rack, and the feeding system and the solid-liquid separation system are clamped by the two semi-cylinders through the grooves to form an integral separation reaction cylinder; the solid separated from the feeding system and the liquid separated from the separation system overflow into different chambers of the solid-liquid collection system respectively;
the feeding system comprises a three-dimensional feeding spray pipe part, a feeding cover plate, a feeding barrel buckle and an isolation baffle; the feeding spray pipe part is fixed on the feeding cover plate through a nut, the feeding cover is a flat plate part with the thickness of 8-10mm, the feeding cover plate is provided with a plurality of circular feeding holes with the inner diameter of 2-10mm, the circular feeding holes are uniformly distributed, an isolation baffle is fixedly connected with the feeding cover plate, the isolation baffle penetrates through the surface of the liquid separation screen part to a position 3-5mm away from the surface of the liquid separation screen part, the feeding barrel is a support frame, the feeding barrel is connected with the feeding cover plate through a bolt, and the feeding barrel is fixed on the rack through a feeding barrel buckle;
the feeding cylinder is a cylindrical welding part and is provided with an overflow port, a flow stopping protrusion and a sealing strip shoulder, the feeding cylinder is fixed with the distribution cylinder through a through hole at the end part, the flow stopping protrusion prevents the liquid biogas slurry from flowing back, and the semi-solid biogas slurry is guided into the solid-liquid collecting cylinder through the solid biogas slurry guide pipe by the overflow port; two ends of the feed cylinder buckle are provided with threads, and two ends of the feed cylinder buckle penetrate through a through hole in the rack fixing flat plate and are fixed on the rack fixing flat plate through nuts; the three-dimensional feeding spray pipe component comprises a rotary rocker arm, a rocker arm bearing, a bearing sealing sleeve, a feeding pipe bracket, a feeding nut and a feeding hose; the rotary rocker arm is welded with the rocker arm bearing and is fixed on the feed pipe bracket in an interference fit manner through a bearing seal sleeve, the feed pipe bracket is fixed on the feed cover plate through a feed nut and threads on the feed pipe bracket, and the feed hose is sleeved at the end part of the feed pipe bracket; the rotary rocker arm is a hollow three-dimensional circular tube structural part and is divided into three sections, one section close to the rocker bearing is vertical to the surface of the rocker bearing, and the middle section and the section close to the rocker bearing form an inclined angle and also form an inclined angle with the end section; the projection line of the central axis of the end section on the end face of the rocker bearing is not coincident with the central point of the end face of the rocker bearing, and biogas slurry is ejected from the end section on the rotary rocker arm and reversely pushed to rotate the rotary rocker arm, so that the biogas slurry ejected onto the liquid separating screen component is more uniform; an included angle between the central axis of the end section and the central axis of the feeding cylinder is less than 30 degrees, so that biogas slurry can be sprayed onto the liquid separating screen component, the biogas slurry can be prevented from being sprayed onto the feeding cylinder, and the solid-liquid separation rate of the biogas slurry can be increased;
the feeding pipe support is a hollow structural part, the cavity space at the end part of the feeding pipe support is larger than the volume of the rocker arm bearing, a middle disc of the feeding pipe support is fixed on the feeding pipe support, the middle disc is clamped on one side of the feeding cover plate, and a feeding nut is clamped on the other side of the feeding cover plate, so that the feeding pipe support is fixed on the feeding cover plate; the feeding hose is sleeved at the end part of the feeding pipe bracket;
the feeding cover plate is a flat plate structural member and is provided with a gradual change hole groove, the width of the hole groove is uniformly and gradually changed, and different biogas slurry feeding quantity requirements are met by matching with three-dimensional feeding spray pipe parts with different thicknesses; the hole type feeding baffle is of another type, different holes of the hole type feeding baffle are matched with the three-dimensional feeding spray pipe part, and the requirement of the fixed position of the three-dimensional feeding spray pipe part under different biogas slurry pressures is met; the isolation baffle comprises an isolation scraper with a brush and a liquid separation baffle, the isolation scraper with the brush is fixed with the liquid separation baffle, the isolation baffle is a rectangular plane steel plate, the isolation baffle is fixed on the feeding cover plate, and R is the inner diameter of a half barrel of the solid-liquid separation system; the end part of the isolation scraper with the brush is of a compact soft brush structure and is in contact with the liquid separation screen component, and when the liquid separation screen component rotates, the solid biogas slurry on the liquid separation screen component is brushed down to flow down to the bottom of the feeding cylinder; the liquid separation partition plate is a flat plate structural member, and separates a biogas slurry spraying channel in the three-dimensional feeding spray pipe component from air blown out from the air blowing system, so that mutual interference of liquid flow and air flow is avoided;
the solid-liquid separation system comprises an air blowing system, a rotating shaft fixing frame, a motor system, an air blowing baffle, a material separating barrel buckle, a loading and unloading screw, a liquid separating screen component and an in-barrel support; the air blowing system is fixed on the frame through bolts, a lengthened air channel on the air blowing system penetrates through holes in the air blowing baffle, and the air blowing system provides continuous air volume for the liquid separation screen component; the rotary shaft is sleeved with the liquid separation screen component through a spline, one end of the rotary shaft is in interference fit with the rotary shaft fixing frame, and the middle of the rotary shaft penetrates through a hole in the blast baffle and is supported by the support in the barrel; the rotating shaft is fixed on the frame by the rotating shaft fixing frame; the motor system is fixed on the frame through a support frame, and the end part of the motor system is connected with a gear on a gear rotating shaft to be matched with the gear, so that the rotating shaft is driven to rotate, and the liquid separating screen component is further driven to rotate; the air blowing baffle plate and the material distributing cylinder are fixed together, and the material distributing cylinder is fixed on the rack through a material distributing cylinder buckle at the periphery of the material distributing cylinder; the loading and unloading screw connects the material separating barrel and the material feeding barrel into a barrel; the end part of the liquid separation screen component can freely rotate in a cylinder formed by closing the material distribution cylinder and the material feeding cylinder and is tightly contacted with a hairbrush at the end part of the isolation scraper with the hairbrush; the blowing system comprises a blower, a blower bracket and a lengthened air channel; the blower bracket fixes the blower and the lengthened air duct together and is fixed on the frame through bolts; the lengthened air channel guides the air blown out by the air blower to the vicinity of the separating screen component; one end of the rotating shaft is provided with a spline which is matched with a spline hole at the end part of the liquid separating screen component, the middle part of the rotating shaft is matched with a gear on the motor system through a gear, and the other end of the rotating shaft is in interference fit with the rotating shaft fixing frame; the rotating shaft fixing frame is internally provided with a bearing which is in interference fit with the bearing, penetrates through a through hole in the rack and is fixed on the rack through a nut;
the motor system comprises a speed regulating motor, a motor support frame and a gear, wherein the gear on the motor system is matched with the gear in the middle of the rotating shaft, the speed regulating motor is in interference fit with the motor support frame, penetrates through a through hole on the rack and is fixed on the rack through a nut, and the speed regulating motor on the motor system can regulate the rotating speed according to actual needs so as to regulate the rotating speed of the liquid separating screen component;
the air blowing baffle is a flat plate structural member, the air blowing baffle is fixed with the material separating cylinder, the air blowing baffle is provided with four through holes, one large through hole is matched with a lengthened air channel on an air blowing system, one medium-sized through hole is matched with the rotating shaft, the other two small through holes are matched with the in-cylinder support, and the air blowing baffle, the in-cylinder support and the rotating shaft are matched together through bolts;
the material separating cylinder is a cylindrical structural member, three threaded holes are formed in the blast baffle, the blast baffle and the material feeding cylinder are fixed into a cylinder through assembling and disassembling screws, an overflow hole is formed in the bottom of the material separating cylinder, separated liquid biogas slurry can be guided into the liquid biogas slurry guide pipe, and the material separating cylinder is fixed on the rack through a material separating cylinder buckle;
the liquid separating screen component comprises a filter screen cover plate, a filter screen and a liquid separating screen bracket; the filter screen cover plate is a rubber structural part, the filter screen is a flat plate part and is used for filtering biogas slurry, and the filter screen cover plate fixes the filter screen and the liquid separating screen bracket together through interference fit; the separating screen support is a separating screen component framework, a spline hole is formed in the end part of the separating screen support and is in spline fit with the end part of the rotating shaft, a circular support groove is formed in the other end of the separating screen support, and a filter screen is placed in the circular support groove and is fixed with a filter screen cover plate in an interference fit manner;
the frame comprises a blowing system bracket, a frame fixing flat plate and frame supporting legs; the bracket of the blast system is welded with the fixed flat plate of the frame, and the fixed flat plate of the frame is fixed with the supporting leg of the frame through a bolt; the blowing system bracket is provided with a through hole, and the blowing system, the rotating shaft fixing frame and the motor system are fixed through bolts; the air blowing system bracket is provided with a reinforcing rib to prevent the air blowing system bracket from deforming and damaging; the frame fixing flat plate is a flat plate structural member, and four circular through holes are formed in the outer side of the frame fixing flat plate and used for fixing the feeding cylinder and the distributing cylinder; the feeding cylinder is fixed through a feeding cylinder buckle, the distributing cylinder is fixed through a distributing cylinder buckle, the middle part of the rack fixing flat plate is provided with a circular through hole and a rectangular through hole, the radius of the circular through hole is 30-40mm, the circular through hole is matched with the liquid biogas slurry guide pipe and is used for guiding liquid biogas slurry, the rectangular through hole extends 80-100mm along two sides of the isolation baffle, the width of the rectangular through hole is 20-30mm, and the rectangular through hole is matched with the solid biogas slurry guide pipe and is used for guiding solid biogas slurry; the frame supporting legs are hollow cylindrical structural members, are four in number, are fixed with a frame fixing flat plate through bolts and are used for supporting the whole gas-liquid double-spraying-rotary filtering type low-concentration biogas slurry continuous solid-liquid separation device;
the solid-liquid collecting system comprises a solid-liquid collecting cylinder, a solid biogas slurry guide pipe and a liquid biogas slurry guide pipe; the middle part of the solid-liquid collecting cylinder is provided with a detachable clapboard which separates the solid-liquid collecting cylinder into two chambers, wherein one chamber receives solid biogas slurry from the solid biogas slurry guide pipe, and the other chamber receives liquid biogas slurry from the liquid biogas slurry guide pipe; the solid biogas slurry guide pipe is a soft rubber part, penetrates through a rectangular through hole in the fixed flat plate of the frame, penetrates through an overflow hole at the bottom of the feeding cylinder, is matched at the bottom of the feeding cylinder, and can adjust the position relation between the end part of the solid biogas slurry guide pipe and the overflow hole at the bottom of the feeding cylinder according to the requirement; the liquid natural pond liquid honeycomb duct is soft rubber spare, passes the circular through-hole in the frame fixed plate to pass the overflow hole of feed cylinder bottom, the cooperation is in feed cylinder bottom, can adjust the position relation of liquid natural pond liquid honeycomb duct tip and feed cylinder bottom overflow hole as required.
The rocker bearing is a plane thrust bearing.
The bearing sealing sleeve is a soft rubber part.
The feeding hose is an anti-corrosion PE pipe with the pressure of more than 1 MPa.
The isolation baffle is 0.9R in length, 60-80mm in width and 5-10mm in thickness.
The side length of the bracket of the separating screen is a √ 3R, and R is the radius of the filter screen.
The feed cylinder buckle is universal with the feed cylinder buckle.
Compared with the prior art, the invention has the beneficial effects that:
1. the three-dimensional feeding spray pipe for spraying the mixture in a high-speed rotating mode is adopted, during feeding, torque is output under the action of double pressure of interaction between the power output pump and the mixture and the pipeline, centrifugal force around the shaft core is formed, therefore, the three-dimensional pipeline rotates along with the bearing, the rotating angle and the axis always keep a fixed angle, a circular spraying surface is formed, thrown materials uniformly act on a large-area filter screen component, high-speed filtering separation is achieved, and filtering efficiency is improved.
2. The invention has simple structure and convenient installation, solves the problem that residual solids block meshes in the separation process of a mixture in real time by installing the scraper with the brush on the front side of the left side of the filter screen and installing the air injection device on the back side, keeps the filter surface clean and improves the solid-liquid separation efficiency.
3. The pore diameter and the rotating speed of the filter screen and the liquid spraying/air spraying rate are convenient to replace and adjust, so that the requirements of different separation qualities can be met.
4. The three-dimensional feeding spray pipe and the clean gas spray gun for spraying the mixture in a high-speed rotating manner are respectively arranged on the left side and the right side of the front surface and the back surface of the filter screen, so that the working processes are not interfered with each other.
5. The invention provides a new method for continuously separating a low-solid-concentration mixture, wherein a filter screen with a micron pore size is adopted to be vertical to a horizontal plane and continuously rotate, a biogas slurry contact surface is always kept in a better filtering state, and the continuous operation of solid-liquid separation is realized.
6. The invention adopts an overflow type solid-liquid collecting tank in the separation product collecting process, so that the separated solid and liquid are naturally settled, and secondary separation is realized through the overflow tank.
7. The separation reaction cylinder is divided into a left part and a right part, is easy to assemble, maintain and clean the internal structure, is economical and practical, and can be widely applied to the fields of water treatment, food processing, microbial fermentation, microalgae cultivation and the like.
Drawings
FIG. 1 is a front view of the present invention;
FIG. 2 is a rear view of the present invention;
FIG. 3 is an internal structural view of the present invention;
FIG. 4 is a schematic view of a feed system of the present invention;
FIG. 5 is a diagram of a liquid distribution structure of the feeding system of the present invention;
FIG. 6 is a view showing the internal structure of the feed system of the present invention;
FIG. 7 is a perspective view of a feed nozzle assembly of the present invention;
FIG. 8 is a schematic view of a feed cover plate of the present invention;
FIG. 9 is a schematic view of an isolation barrier of the present invention;
FIG. 10 is a front view of a solid-liquid separation system of the present invention;
FIG. 11 is a semi-sectional view of a solid-liquid separation system of the present invention;
FIG. 12 is an internal structural view of a solid-liquid separation system of the present invention;
FIG. 13 is a diagram of the blower system of the present invention;
FIG. 14 is a schematic view of a separating screen assembly of the present invention;
FIG. 15 is a schematic view of a housing of the present invention;
FIG. 16 is a schematic view of a solid liquid collection system of the present invention;
FIG. 17 is a schematic view of a solid biogas slurry draft tube according to the present invention;
fig. 18 is a schematic view of a liquid biogas slurry guide pipe of the present invention.
In the figure: a-a feed system; b-a solid-liquid separation system; c-a frame; d-a solid-liquid collection system; 1-a three-dimensional feed nozzle part; 2-feeding cover plate; 3-a feeding cylinder; 4-clamping a feeding cylinder; 5-an isolation baffle; 6-rotating the rocker arm; 7-rocker arm bearing; 8-bearing seal cartridge; 9-feed pipe support; 10-a feed nut; 11-a feed hose; a 12-orifice feed baffle; 13-isolation scraper with brush; 14-a liquid separation separator; 15-a blower system; 16-a rotation axis; 17-a rotating shaft fixing frame; 18-an electric machine system; 19-blast baffles; 20-material separating cylinder; 21-clamping a material separating cylinder; 22-handling screws; 23-a separating screen member; 24-an in-cylinder support; 25-a blower; 26-a blower bracket; 27-lengthening an air duct; 28-screen cover plate; 29-a screen support screen; 30-a separating screen support; 31-a blower system mount; 32-a rack fixing flat plate; 33-frame legs; 34-a solid-liquid collecting cylinder; 35-a solid biogas slurry guide pipe; and 36-liquid biogas slurry guide pipe.
Detailed Description
Referring to fig. 1 to 3, a gas-liquid double-spraying-rotary filtering type low-concentration biogas slurry continuous solid-liquid separation device comprises a feeding system A, a solid-liquid separation system B, a frame C and a solid-liquid collection system D;
the feeding system A and the solid-liquid separation system B are both fixed on a rack C, the solid-liquid collection system D is connected with the rack C, and the two half cylinders on the feeding system A and the solid-liquid separation system B are clamped through U-shaped grooves to form an integral separation reaction cylinder; the solid separated from the feeding system A and the liquid separated from the separation system B overflow into different cavities of the solid-liquid collection system D respectively;
referring to fig. 4 to 6, the feeding system a includes a three-dimensional feeding nozzle part 1, a feeding cover plate 2, a feeding cylinder 3, a feeding cylinder fastener 4 and an isolation baffle 5; the feeding spray pipe component 1 is fixed on the feeding cover plate 2 through a nut, the feeding cover plate 2 is a flat plate component with the thickness of 8-10mm, the feeding cover plate 2 is provided with a plurality of circular feeding holes with the inner diameters of 2-10mm, the circular feeding holes are evenly distributed, the isolation baffle plate 5 is fixedly connected with the feeding cover plate 2, the isolation baffle plate 5 penetrates through the position 3-5mm away from the surface of the liquid separation screen component 23, the feeding cylinder 3 is a supporting frame, the feeding cylinder 3 is connected with the feeding cover plate 2 through a bolt, and the feeding cylinder 3 is fixed on the rack C through a feeding cylinder buckle 4.
The feeding cylinder 3 is a cylindrical welding part, an overflow port, a flow stopping protrusion and a sealing strip circular bead are arranged on the feeding cylinder 3, the feeding cylinder 3 is fixed with the material distribution cylinder 20 through a through hole at the end part, the flow stopping protrusion prevents liquid biogas slurry from flowing back, and the semi-solid biogas slurry is guided into the solid-liquid collection cylinder 34 through the solid biogas slurry guide pipe 35 by the overflow port.
Two ends of the feeding cylinder buckle 4 are provided with threads, and two ends of the feeding cylinder buckle 4 penetrate through holes in the rack fixing flat plate 32 and are fixed on the rack fixing flat plate 32 through nuts.
Referring to fig. 7, the three-dimensional feeding nozzle part 1 includes a rotary rocker arm 6, a rocker arm bearing 7, a bearing sealing sleeve 8, a feeding pipe bracket 9, a feeding nut 10 and a feeding hose 11; the rotary rocker arm 6 is welded with a rocker arm bearing 7 and is fixed on the feeding pipe bracket 9 through a bearing seal sleeve 8 in an interference fit manner, the feeding nut 10 fixes the feeding pipe bracket 9 on the feeding cover plate 2 through threads on the feeding pipe bracket 9, and the feeding hose 11 is sleeved at the end part of the feeding pipe bracket 9;
the rotary rocker arm 6 is a hollow three-dimensional circular tube structural part and is divided into three sections, one section close to the rocker bearing 7 is vertical to the surface of the rocker bearing 7, and the middle section and the section close to the rocker bearing 7 form an inclined angle and also form an inclined angle with the end section; the projection line of the central axis of the end section on the end face of the rocker bearing 7 is not coincident with the central point of the end face of the rocker bearing 7, and the rotating rocker arm 6 is reversely pushed to rotate when the biogas slurry is sprayed out through the end section on the rotating rocker arm 6, so that the biogas slurry sprayed onto the liquid separating screen component 23 is more uniform; the included angle between the central axis of the end section and the central axis of the feeding cylinder 3 is less than 30 degrees, which is beneficial to spraying the biogas slurry onto the liquid separating screen component 23, avoiding spraying the biogas slurry onto the feeding cylinder 3 and increasing the solid-liquid separation rate of the biogas slurry.
The rocker bearing 7 is a plane thrust bearing.
The bearing sealing sleeve 8 is a soft rubber part.
The feeding pipe support 9 is a hollow structural member, the cavity space at the end part of the feeding pipe support 9 is larger than the volume of the rocker bearing 7, a middle disc of the feeding pipe support 9 is fixed on the feeding pipe support, the middle disc is clamped on one side of the feeding cover plate 2, and the feeding nut 10 is clamped on the other side of the feeding cover plate 2, so that the feeding pipe support 9 is fixed on the feeding cover plate 2.
The feeding hose 11 is an anti-corrosion PE pipe with the pressure of more than 1MPa, is used for feeding biogas slurry, and is sleeved at the end part of the feeding pipe support 9.
Referring to fig. 8, the feeding cover plate 2 is a flat plate structural member, is provided with a gradual change hole groove, has a uniform and gradual change width, and meets different biogas slurry feeding quantity requirements by matching with the three-dimensional feeding nozzle pipe part 1 with different thicknesses; the hole type feeding baffle 12 is of another type, different holes of the hole type feeding baffle 12 are matched with the three-dimensional feeding spray pipe part 1, and the requirement of the fixed position of the three-dimensional feeding spray pipe part 1 under different biogas slurry pressures is met.
Referring to fig. 9, the isolation baffle 5 comprises an isolation scraper 13 with a brush and a liquid separation baffle 14, the isolation scraper 13 with the brush is fixed with the liquid separation baffle 14, the isolation baffle 5 is a rectangular plane steel plate with the length of 0.9R, the width of 60-80mm and the thickness of 5-10mm, the isolation baffle 5 is fixed on the feeding cover plate 2, wherein R is the inner diameter of a half barrel of the solid-liquid separation system B; the end part of the isolation scraper 13 with the brush is of a compact soft brush structure and is in contact with the liquid separation screen component 23, and when the liquid separation screen component 23 rotates, the solid biogas slurry on the liquid separation screen component 23 is brushed down to flow down to the bottom of the feeding cylinder 3; the liquid separation partition plate 14 is a flat plate structural member, and the liquid separation partition plate 14 separates a biogas slurry spraying channel in the three-dimensional feeding spray pipe component 1 from air blown out from the air blowing system 15, so that mutual interference of liquid flow and air flow is avoided.
Referring to fig. 10 to 14, the solid-liquid separation system B includes an air blowing system 15, a rotating shaft 16, a rotating shaft fixing frame 17, a motor system 18, an air blowing baffle 19, a material separating cylinder 20, a material separating cylinder fastener 21, a loading and unloading screw 22, a material separating screen member 23 and an in-cylinder bracket 24; the blowing system 15 is fixed on the frame C through bolts, a lengthened air channel 27 on the blowing system 15 penetrates through holes in the blowing baffle plate 19, and the blowing system 15 provides continuous air volume for the liquid separation screen mesh component 23; the rotary shaft 16 is sleeved with the separating screen component 23 through a spline, one end part of the rotary shaft 16 is in interference fit with the rotary shaft fixing frame 17, and the middle part of the rotary shaft 16 penetrates through a hole in the blast baffle plate 19 and is supported by the inner barrel bracket 24; the rotating shaft 16 is fixed on the frame C by a rotating shaft fixing frame 17; the motor system 18 is fixed on the rack C through a support frame, and the end part of the motor system 18 is connected with a gear on the gear rotating shaft 16 to be matched with the gear, so that the rotating shaft 16 is driven to rotate, and the liquid separating screen component 23 is further driven to rotate; the air blowing baffle 19 is fixed with the material distributing cylinder 20, and the material distributing cylinder 20 is fixed on the rack C through a material distributing cylinder buckle 21 on the periphery of the material distributing cylinder 20; the loading and unloading screw 22 connects the material separating cylinder 20 and the material feeding cylinder 3 into a cylinder; the end part of the separating screen component 23 can freely rotate in the cylinder where the separating cylinder 20 and the feeding cylinder 3 are closed, and is tightly contacted with the brush at the end part of the isolating scraper 13 with the brush.
The air blowing system 15 comprises an air blower 25, an air blower bracket 26 and an extended air duct 27; the blower bracket 26 fixes the blower 25 and the lengthened air duct 27 together and is fixed on the frame C through bolts; the extended air duct 27 guides air blown from the air blower 25 to the vicinity of the separating screen member 23.
One end of the rotating shaft 16 is provided with a spline and is matched with a spline hole at the end part of the separating screen member 23, the middle part of the rotating shaft 16 is matched with a gear on the motor system 18 through a gear, and the other end of the rotating shaft 16 is in interference fit with the rotating shaft fixing frame 17.
The rotating shaft fixing frame 17 is internally provided with a bearing which is in interference fit with the bearing, and the rotating shaft fixing frame 17 penetrates through a through hole in the rack C and is fixed on the rack C through a nut.
The motor system 18 comprises a speed regulating motor, a motor support frame and a gear, the gear on the motor system 18 is matched with the gear in the middle of the rotating shaft 16, the speed regulating motor is in interference fit with the motor support frame, penetrates through a through hole in the rack C and is fixed on the rack C through a nut, and the speed regulating motor on the motor system 18 can regulate the rotating speed according to actual needs so as to regulate the rotating speed of the liquid separating screen component 23.
The air blowing baffle plate 19 is a flat plate structural member, the air blowing baffle plate 19 is fixed with the material separating cylinder 20, the air blowing baffle plate 19 is provided with four through holes, one large through hole is matched with a lengthened air duct 27 on the air blowing system 15, one medium through hole is matched with the rotating shaft 16, the other two small through holes are matched with the in-cylinder support 24, and the air blowing baffle plate 19, the in-cylinder support 24 and the rotating shaft 16 are matched together through bolts.
The material distributing cylinder 20 is a cylindrical structural member, the air blowing baffle 19 is provided with three threaded holes, the material distributing cylinder and the feeding cylinder 3 are fixed into a cylinder through assembling and disassembling screws 22, the bottom of the material distributing cylinder 20 is provided with overflow holes, separated liquid biogas slurry can be guided into the liquid biogas slurry guide pipe 36, and the material distributing cylinder 20 is fixed on the rack C through a material distributing cylinder buckle 21.
The material distributing cylinder buckle 21 is universal with the feeding cylinder buckle 4.
The separating screen component 23 comprises a screen cover plate 28, a screen 29 and a separating screen bracket 30; filter screen apron 28 is the rubber structure spare, and filter screen 29 is the flat board part and is used for filtering natural pond liquid, and filter screen apron 28 is together fixed with filter screen 29, divide liquid sieve support 30 through interference fit.
Divide liquid sieve support 30 for dividing liquid screen member 23 skeleton, divide liquid sieve support 30 side length for an ═ check chart √ 3R, wherein R is the filter screen radius, divide liquid sieve support 30 tip to have the splined hole, with rotation axis 16 tip spline fit, divide liquid sieve support 30 other end to have ring shape to support the groove, filter screen 29 places wherein, and filter screen apron 28 interference fit is fixed.
Referring to fig. 15, the rack C includes a blower system bracket 31, a rack fixing plate 32, and rack legs 33; the blowing system bracket 31 and the rack fixing flat plate 32 are welded together, and the rack fixing flat plate 32 and the rack supporting leg 33 are fixed through bolts; the air blowing system bracket 31 is provided with a through hole, and the air blowing system 15, the rotating shaft fixing frame 17 and the motor system 18 are fixed through bolts; the blowing system bracket 31 is provided with a reinforcing rib to prevent the blowing system bracket 31 from deforming and damaging; the frame fixing flat plate 32 is a flat plate structural member, and four circular through holes are formed in the outer side of the frame fixing flat plate and are used for fixing the feeding cylinder 3 and the distributing cylinder 20; the feeding cylinder 3 is fixed through a feeding cylinder buckle 4, the distributing cylinder 20 is fixed through a distributing cylinder buckle 21, the middle part of the rack fixing flat plate 32 is provided with a circular through hole and a rectangular through hole, the radius of the circular through hole is 30-40mm, the circular through hole is matched with the liquid biogas slurry guide pipe 36 and is used for guiding liquid biogas slurry, the rectangular through hole extends 80-100mm along each of two sides of the isolation baffle 5, the width of the rectangular through hole is 20-30mm, and the rectangular through hole is matched with the solid biogas slurry guide pipe 35 and is used for guiding solid biogas slurry; the frame supporting legs 33 are hollow cylindrical structural members, are four in number, are fixed with the frame fixing flat plate 32 through bolts, and are used for supporting the whole gas-liquid double-spraying-rotary filtering type low-concentration biogas slurry continuous solid-liquid separation device.
Referring to fig. 16 to 18, the solid-liquid collecting system D includes a solid-liquid collecting cylinder 34, a solid biogas slurry guiding pipe 35, and a liquid biogas slurry guiding pipe 36; the middle part of the solid-liquid collecting barrel 34 is provided with a detachable clapboard which separates the solid-liquid collecting barrel 34 into two chambers, wherein one chamber receives the solid biogas slurry from the solid biogas slurry guide pipe 35, and the other chamber receives the liquid biogas slurry from the liquid biogas slurry guide pipe 36; the solid biogas slurry guide pipe 35 is a soft rubber part, penetrates through a rectangular through hole in the frame fixing flat plate 32, penetrates through an overflow hole at the bottom of the feeding cylinder 3, is matched at the bottom of the feeding cylinder 3, and can adjust the position relation between the end part of the solid biogas slurry guide pipe 35 and the overflow hole at the bottom of the feeding cylinder 3 as required; the liquid biogas slurry guide pipe 36 is a soft rubber part, penetrates through a circular through hole in the rack fixing flat plate 32, penetrates through an overflow hole in the bottom of the material separating cylinder 20, is matched with the bottom of the material separating cylinder 20, and can adjust the position relation between the end part of the liquid biogas slurry guide pipe 36 and the overflow hole in the bottom of the material separating cylinder 20 as required.
The working principle of the invention is as follows:
referring to fig. 1 to 3, before biogas slurry solid-liquid separation, a feeding system a and a solid-liquid separation system B are fixed together by a handling screw 22, and the feeding system a and the solid-liquid separation system B are respectively fixed on a frame C by a feeding cylinder fastener 4 and a material separating cylinder fastener 21; a solid biogas slurry guide pipe 35 penetrates through a rectangular through hole of a rack fixing flat plate 32 and is matched with an overflow hole at the bottom of the feeding cylinder 3, and the other end of the solid biogas slurry guide pipe 35 is arranged in a cavity of a solid-liquid collecting cylinder 34; and (3) enabling the liquid biogas slurry guide pipe 36 to penetrate through the circular through hole of the rack fixing flat plate 32 to be matched with the overflow hole at the bottom of the material separating cylinder 20, and enabling the other end of the liquid biogas slurry guide pipe 36 to be arranged in the other cavity of the solid-liquid collecting cylinder 34.
Firstly, a power supply of a motor system 18 is communicated, so that the motor runs to drive a gear on the motor system 18, a rotating shaft 16 rotates along with the gear, and a separating screen component 23 is driven to rotate through a spline; then the air blowing system 15 is switched on, and the air blowing system 15 blows air to the filter screen on the liquid separation screen component 23; finally, connecting a feeding hose 11 on the three-dimensional feeding spray pipe part 1 with the high-pressure biogas slurry; biogas slurry flows through the three-dimensional feeding spray pipe part 1, is rotationally sprayed out from the end part of the rotary rocker arm 6 and is sprayed onto the filter screen on the liquid separating screen part 23; the biogas slurry is blocked by the liquid separation partition plate 14 and can be sprayed into one side cavity of the liquid separation partition plate 14, under the action of high-pressure spraying, solid residue of the biogas slurry is attached to the surface of the filter screen on the liquid separation screen part 23, the filtered biogas slurry flows into the cavity of the material separation cylinder 20, and the filtered biogas slurry is guided into one cavity of the solid-liquid collection cylinder 34 through the liquid biogas slurry guide pipe 36; attached to in the cavity that falls into a feeding section of thick bamboo 3 by blower system 15 in the natural pond liquid residue on the screen surface of separating screen cloth part 23, some natural pond liquid residues that bond on the screen surface rotate along with separating screen cloth part 23, when rotatory brush department to taking brush to keep apart on scraper 13, the brush brushes down natural pond liquid residue, and natural pond liquid residue collects in feeding section of thick bamboo 3 cavity bottoms, arranges natural pond liquid residue to another cavity of solid-liquid collection section of thick bamboo 34 through solid-state natural pond liquid honeycomb duct 35 in, realizes natural pond liquid solid-liquid separation.
When the device is stopped, the biogas slurry feeding in the three-dimensional feeding spray pipe part 1 is firstly cut off, then the power supply of the air blowing system 15 is cut off, and finally the motor system 18 stops rotating.
The flow of the biogas slurry is controlled by the size of the three-dimensional feeding spray pipe part 1 and can be controlled according to the pressure when the biogas slurry is discharged, the air quantity of the air blowing system 15 is adjustable, the rotating speed of the motor system 18 is adjustable, and the speed of the air blowing system 15 and the speed of the motor system 18 are adjusted according to actual requirements.
Referring to fig. 7 and 8, when the three-dimensional feeding nozzle part 1 works, high-pressure biogas slurry firstly flows through the feeding hose 11, then enters the cavity of the feeding pipe support 9, and finally flows into the cavity of the rotary rocker arm 6, because the rotary rocker arm 6 is of a three-dimensional structure, a projection line of a central axis of a port section of the rotary rocker arm is not coincident with a central point of an end surface of the rocker arm bearing 7, and when the high-pressure biogas slurry is sprayed out from the end surface of the rotary rocker arm 6, recoil force can be generated; the other end face of the rotary rocker arm 6 is fixed with one end face of the rocker arm bearing 7, resistance is small when the rocker arm bearing 7 slides relatively, the rotary rocker arm 6 rotates under the action of reverse thrust, sprayed biogas slurry is sprayed onto the liquid separating screen component 23 more uniformly, filter screen blockage caused by too concentrated spraying positions is avoided, the bearing sealing sleeve 8 plays a role in stopping, rotary motion of the rocker arm bearing 7 is not influenced, and axial motion of the rocker arm bearing 7 is limited.
The feeding cover plate 2 is provided with a long arc hole with continuously changed size, and is matched with the three-dimensional feeding spray pipe parts 1 with different sizes to control the spraying flow of the biogas slurry. The speed of the biogas slurry sprayed out from the end part of the rotary rocker arm 6 can be controlled by controlling the size of the three-dimensional feeding spray pipe part 1.
Referring to fig. 14, when installing the filter screen on the separating screen member 23, the filter screen 29 is first placed in the end groove of the separating screen support 30, fixed by the filter screen cover plate 28, and sleeved on the separating screen support 30; the filter screen cover plate is annular, when the filter screen is replaced, the filter screen cover plate 28 is taken down, then the filter screen to be replaced is taken down, and a new filter screen is sleeved on the filter screen cover plate 28; this structure can make things convenient for the filter screen dismouting, increases the stability of working process simultaneously.
Claims (9)
1. Gas-liquid double-spraying-rotary filtering type low-concentration biogas slurry continuous solid-liquid separation device is characterized in that: comprises a feeding system (A), a solid-liquid separation system (B), a frame (C) and a solid-liquid collection system (D);
the feeding system (A) and the solid-liquid separation system (B) are fixed on a rack (C), the solid-liquid collection system (D) is connected with the rack (C), and two half cylinders on the feeding system (A) and the solid-liquid separation system (B) are clamped through U-shaped grooves to form an integral separation reaction cylinder; the solid separated from the feeding system (A) and the liquid separated from the separation system (B) overflow into different chambers of the solid-liquid collection system (D) respectively;
the feeding system (A) comprises a three-dimensional feeding spray pipe part (1), a feeding cover plate (2), a feeding barrel (3), a feeding barrel buckle (4) and an isolation baffle (5); the feeding spray pipe component (1) is fixed on the feeding cover plate (2) through nuts, the feeding cover plate (2) is a flat plate component, the feeding cover plate (2) is provided with a plurality of circular feeding holes which are uniformly distributed, the isolation baffle (5) is fixedly connected with the feeding cover plate (2), the isolation baffle (5) penetrates through the surface of the liquid separation screen component (23) for 3-5mm, the feeding cylinder (3) is a supporting frame, the feeding cylinder (3) is connected with the feeding cover plate (2) through bolts, and the feeding cylinder (3) is fixed on the rack (C) through a feeding cylinder buckle (4);
the feeding cylinder (3) is a cylindrical welding part, an overflow port, a flow stopping protrusion and a sealing strip shoulder are arranged on the feeding cylinder (3), the feeding cylinder (3) is fixed with the material distribution cylinder (20) through a through hole at the end part, the flow stopping protrusion prevents liquid biogas slurry from flowing back, and the semi-solid biogas slurry is guided into the solid-liquid collection cylinder (34) through the solid biogas slurry guide pipe (35) by the overflow port; two ends of the feeding cylinder buckle (4) are provided with threads, and two ends of the feeding cylinder buckle (4) penetrate through holes in the rack fixing flat plate (32) and are fixed on the rack fixing flat plate (32) through nuts; the three-dimensional feeding spray pipe component (1) comprises a rotary rocker arm (6), a rocker arm bearing (7), a bearing seal sleeve (8), a feeding pipe bracket (9), a feeding nut (10) and a feeding hose (11); the rotary rocker arm (6) is welded with a rocker arm bearing (7) and is fixed on the feeding pipe support (9) through a bearing seal sleeve (8) in an interference fit manner, the feeding pipe support (9) is fixed on the feeding cover plate (2) through a feeding nut (10) and a thread on the feeding pipe support (9), and the feeding hose (11) is sleeved at the end part of the feeding pipe support (9); the rotary rocker arm (6) is a hollow three-dimensional circular tube structural part and is divided into three sections, one section close to the rocker arm bearing (7) is vertical to the surface of the rocker arm bearing (7), and the middle section and the section close to the rocker arm bearing (7) form an inclined angle and also form an inclined angle with the end section; the projection line of the central axis of the end section on the end face of the rocker bearing (7) is not coincident with the central point of the end face of the rocker bearing (7), and biogas slurry reversely pushes the rotary rocker arm (6) to rotate when being sprayed out through the end section on the rotary rocker arm (6), so that the biogas slurry sprayed onto the liquid separating screen component (23) is more uniform; an included angle between the central axis of the end section and the central axis of the feeding cylinder (3) is smaller than (30 degrees), so that biogas slurry can be sprayed onto the liquid separating screen component (23) conveniently, the biogas slurry can be prevented from being sprayed onto the feeding cylinder (3), and the solid-liquid separation rate of the biogas slurry is increased;
the feeding pipe support (9) is a hollow structural part, the cavity space at the end part of the feeding pipe support (9) is larger than the volume of the rocker bearing (7), a middle disc of the feeding pipe support (9) is fixed on the feeding pipe support, the middle disc is clamped on one surface of the feeding cover plate (2), and a feeding nut (10) is clamped on the other side of the feeding cover plate (2), so that the feeding pipe support (9) is fixed on the feeding cover plate (2); the feeding hose (11) is sleeved at the end part of the feeding pipe bracket (9);
the feeding cover plate (2) is a flat plate structural member, is provided with a gradual change hole groove, has a uniform and gradual change width, and meets different biogas slurry feeding quantity requirements by matching with the three-dimensional feeding spray pipe component (1) with different thicknesses; the hole type feeding baffle (12) is of another type, different holes of the hole type feeding baffle (12) are matched with the three-dimensional feeding spray pipe part (1), and the requirement of fixing positions of the three-dimensional feeding spray pipe part (1) under different biogas slurry pressures is met; the isolation baffle (5) comprises an isolation scraper (13) with a brush and a liquid separation baffle (14), the isolation scraper (13) with the brush is fixed with the liquid separation baffle (14), the isolation baffle (5) is a rectangular plane steel plate, and the isolation baffle (5) is fixed on the feeding cover plate (2); the end part of the isolation scraper (13) with the brush is of a compact soft brush structure and is in contact with the liquid separation screen component (23), and when the liquid separation screen component (23) rotates, the solid biogas slurry on the liquid separation screen component (23) is brushed down to flow down to the bottom of the feeding cylinder (3); the liquid separation partition plate (14) is a flat plate structural member, and the liquid separation partition plate (14) separates a biogas slurry spraying channel in the three-dimensional feeding spray pipe component (1) from air blown out from the air blowing system (15), so that mutual interference of liquid flow and air flow is avoided;
the solid-liquid separation system (B) comprises an air blowing system (15), a rotating shaft (16), a rotating shaft fixing frame (17), a motor system (18), an air blowing baffle plate (19), a distributing cylinder (20), a distributing cylinder buckle (21), a loading and unloading screw (22), a liquid separating screen component (23) and an in-cylinder support (24); the air blowing system (15) is fixed on the rack (C) through bolts, a lengthened air channel (27) on the air blowing system (15) penetrates through holes in the air blowing baffle plate (19), and the air blowing system (15) provides continuous air volume for the liquid separation screen component (23); the rotary shaft (16) is sleeved with the separating screen component (23) through a spline, one end part of the rotary shaft (16) is in interference fit with the rotary shaft fixing frame (17), and the middle part of the rotary shaft (16) penetrates through a hole in the blast baffle (19) and is supported by the inner cylinder bracket (24); the rotating shaft (16) is fixed on the frame (C) by the rotating shaft fixing frame (17); the motor system (18) is fixed on the rack (C) through a support frame, and the end part of the motor system (18) is connected with a gear on a gear rotating shaft (16) to be matched with the gear, so that the rotating shaft (16) is driven to rotate, and a liquid separating screen component (23) is further driven to rotate; the blowing baffle (19) and the material separating barrel (20) are fixed together, and the material separating barrel (20) is fixed on the rack (C) by a material separating barrel buckle (21) at the periphery of the material separating barrel (20); the loading and unloading screw (22) connects the material separating barrel (20) and the feeding barrel (3) into a barrel; the end part of the liquid separation screen component (23) can freely rotate in the cylinder closed by the material separating cylinder (20) and the material feeding cylinder (3) and is tightly contacted with the brush at the end part of the isolating scraper (13) with the brush; the air blowing system (15) comprises an air blower (25), an air blower bracket (26) and a lengthened air duct (27); the blower bracket (26) fixes the blower (25) and the lengthened air duct (27) together and is fixed on the frame (C) through bolts; an extended air duct (27) for introducing air blown from the air blower (25) into the vicinity of the separating screen member (23); one end of the rotating shaft (16) is provided with a spline and is matched with a spline hole at the end part of the separating screen component (23), the middle part of the rotating shaft (16) is matched with a gear on the motor system (18) through a gear, and the other end of the rotating shaft (16) is in interference fit with the rotating shaft fixing frame (17); the bearing is arranged in the rotating shaft fixing frame (17) and is in interference fit with the bearing, and the rotating shaft fixing frame (17) penetrates through a through hole in the rack (C) and is fixed on the rack (C) through a nut;
the motor system (18) comprises a speed regulating motor, a motor support frame and a gear, the gear on the motor system (18) is matched with the gear in the middle of the rotating shaft (16), the speed regulating motor is in interference fit with the motor support frame, penetrates through a through hole in the rack (C), and is fixed on the rack (C) through a nut, and the speed regulating motor on the motor system (18) can regulate the rotating speed according to actual needs so as to regulate the rotating speed of the liquid separating screen component (23);
the blowing baffle (19) is a flat plate structural member, the blowing baffle (19) is fixed with the material separating cylinder (20), the blowing baffle (19) is provided with four through holes, one large through hole is matched with a lengthened air duct (27) on the blowing system (15), one middle through hole is matched with the rotating shaft (16), the other two small through holes are matched with the in-cylinder support (24), and the blowing baffle (19), the in-cylinder support (24) and the rotating shaft (16) are matched together through bolts;
the material separating cylinder (20) is a cylindrical structural member, the air blowing baffle (19) is provided with three threaded holes, the material separating cylinder and the feeding cylinder (3) are fixed into a cylinder through assembling and disassembling screws (22), the bottom of the material separating cylinder (20) is provided with an overflow hole, separated liquid biogas slurry can be guided into the liquid biogas slurry guide pipe (36), and the material separating cylinder (20) is fixed on the rack (C) through a material separating cylinder buckle (21);
the separating screen component (23) comprises a filter screen cover plate (28), a filter screen (29) and a separating screen bracket (30); the filter screen cover plate (28) is a rubber structural part, the filter screen (29) is a flat plate part and is used for filtering biogas slurry, and the filter screen cover plate (28) fixes the filter screen (29) and the separating screen bracket (30) together through interference fit; the separating screen support (30) is a separating screen component (23) framework, the end part of the separating screen support (30) is provided with a spline hole and is in spline fit with the end part of the rotating shaft (16), the other end of the separating screen support (30) is provided with a circular support groove, and a filter screen (29) is placed in the circular support groove and is fixed with a filter screen cover plate (28) in an interference fit manner;
the rack (C) comprises a blowing system bracket (31), a rack fixing flat plate (32) and rack supporting legs (33); a blowing system support (31) is welded with a rack fixing flat plate (32), and the rack fixing flat plate (32) is fixed with rack supporting legs (33) through bolts; a through hole is formed in the blowing system support (31), and the blowing system (15), the rotating shaft fixing frame (17) and the motor system (18) are fixed through bolts; the blowing system bracket (31) is provided with a reinforcing rib to prevent the blowing system bracket (31) from deforming and damaging; the rack fixing flat plate (32) is a flat plate structural member, and four circular through holes are formed in the outer side of the rack fixing flat plate and used for fixing the feeding barrel (3) and the material distributing barrel (20); the feeding cylinder (3) is fixed through a feeding cylinder buckle (4), the material dividing cylinder (20) is fixed through a material dividing cylinder buckle (21), a circular through hole and a rectangular through hole are formed in the middle of the rack fixing flat plate (32), the circular through hole is matched with the liquid biogas slurry guide pipe (36) and is used for guiding liquid biogas slurry, and the rectangular through hole is matched with the solid biogas slurry guide pipe (35) and is used for guiding solid biogas slurry; the frame supporting legs (33) are hollow cylindrical structural members, are four in number, are fixed with a frame fixing flat plate (32) through bolts and are used for supporting the whole gas-liquid double-spraying-rotary filtering type low-concentration biogas slurry continuous solid-liquid separation device;
the solid-liquid collecting system (D) comprises a solid-liquid collecting cylinder (34), a solid biogas slurry guide pipe (35) and a liquid biogas slurry guide pipe (36); the middle part of the solid-liquid collecting cylinder (34) is provided with a detachable clapboard which separates the solid-liquid collecting cylinder (34) into two chambers, wherein one chamber receives solid biogas slurry from the solid biogas slurry guide pipe (35), and the other chamber receives liquid biogas slurry from the liquid biogas slurry guide pipe (36); the solid biogas slurry guide pipe (35) is a soft rubber part, penetrates through a rectangular through hole in the rack fixing flat plate (32), penetrates through an overflow hole in the bottom of the feeding cylinder (3), is matched with the bottom of the feeding cylinder (3), and can adjust the position relation between the end part of the solid biogas slurry guide pipe (35) and the overflow hole in the bottom of the feeding cylinder (3) according to requirements; the liquid biogas slurry guide pipe (36) is a soft rubber part, penetrates through a circular through hole in the rack fixing flat plate (32), penetrates through an overflow hole in the bottom of the charging barrel (20), is matched with the bottom of the charging barrel (20), and can adjust the position relation between the end part of the liquid biogas slurry guide pipe (36) and the overflow hole in the bottom of the charging barrel (20) as required.
2. The gas-liquid double-spraying-rotary filtering type low-concentration biogas slurry continuous solid-liquid separation device according to claim 1, which is characterized in that: the rocker bearing (7) is a plane thrust bearing.
3. The gas-liquid double-spraying-rotary filtering type low-concentration biogas slurry continuous solid-liquid separation device according to claim 1, which is characterized in that: the bearing sealing sleeve (8) is a soft rubber part.
4. The gas-liquid double-spraying-rotary filtering type low-concentration biogas slurry continuous solid-liquid separation device according to claim 1, which is characterized in that: the feeding hose (11) is an anti-corrosion PE pipe with the pressure of more than 1 MPa.
5. The gas-liquid double-jet-rotary filtering type low-concentration biogas slurry continuous solid-liquid separation device according to claim 1, which is characterized in that: the isolation baffle (5) has the length of 0.9R, the width of 60-80mm and the thickness of 5-10mm, wherein R is the inner diameter of a half barrel of the solid-liquid separation system (B).
6. The gas-liquid double-spraying-rotary filtering type low-concentration biogas slurry continuous solid-liquid separation device according to claim 1, which is characterized in that: the side length of the separating screen support (30) is a ═ V3R, and R is the radius of the filter screen.
7. The gas-liquid double-spraying-rotary filtering type low-concentration biogas slurry continuous solid-liquid separation device according to claim 1, which is characterized in that: the feed cylinder buckle (21) is universal with the feed cylinder buckle (4).
8. The gas-liquid double-spraying-rotary filtering type low-concentration biogas slurry continuous solid-liquid separation device according to claim 1, which is characterized in that: the thickness of the feeding cover plate (2) is 8-10mm, and the inner diameter of a circular feeding hole of the feeding cover plate (2) is 2-10 mm.
9. The gas-liquid double-spraying-rotary filtering type low-concentration biogas slurry continuous solid-liquid separation device according to claim 1, which is characterized in that: the radius of the circular through hole of the rack fixing flat plate (32) is 30-40mm, the rectangular through hole of the rack fixing flat plate (32) extends 80-100mm along the two sides of the isolation baffle (5) respectively, and the width of the rectangular through hole is 20-30 mm.
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| CN202210521944.8A CN114712930B (en) | 2022-05-13 | 2022-05-13 | Gas-liquid double-spraying-rotary filtering type low-concentration biogas slurry continuous solid-liquid separation device |
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| CN202210521944.8A CN114712930B (en) | 2022-05-13 | 2022-05-13 | Gas-liquid double-spraying-rotary filtering type low-concentration biogas slurry continuous solid-liquid separation device |
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| CN114712930B CN114712930B (en) | 2023-01-20 |
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| JP2015134316A (en) * | 2014-01-17 | 2015-07-27 | 株式会社石垣 | Screw type solid-liquid separation apparatus incorporating flocculating/mixing device |
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| CN114712930B (en) | 2023-01-20 |
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